116 lines
4.8 KiB
C++
116 lines
4.8 KiB
C++
/*
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* Copyright (C) 2007, 2013 Apple, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if USE(CG)
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#include "PixelDumpSupportCG.h"
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#elif USE(CAIRO)
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#include "PixelDumpSupportCairo.h"
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#elif USE(DIRECT2D)
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#include "PixelDumpSupportDirect2D.h"
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#endif
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#include "DumpRenderTree.h"
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#if USE(CG)
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// Note: Must be included *after* DumpRenderTree.h to avoid compile error.
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#include <CoreGraphics/CGBitmapContext.h>
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#endif
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#include <wtf/Assertions.h>
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#include <wtf/RetainPtr.h>
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#include <wtf/win/GDIObject.h>
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static void makeAlphaChannelOpaque(void* argbBits, LONG width, LONG height)
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{
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unsigned* pixel = static_cast<unsigned*>(argbBits);
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for (LONG row = 0; row < height; ++row) {
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for (LONG column = 0; column < width; ++column)
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*pixel++ |= 0xff000000;
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}
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}
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RefPtr<BitmapContext> createBitmapContextFromWebView(bool onscreen, bool incrementalRepaint, bool sweepHorizontally, bool drawSelectionRect)
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{
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RECT frame;
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if (!GetWindowRect(webViewWindow, &frame))
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return nullptr;
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BITMAPINFO bmp { };
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bmp.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bmp.bmiHeader.biWidth = frame.right - frame.left;
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bmp.bmiHeader.biHeight = -(frame.bottom - frame.top);
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bmp.bmiHeader.biPlanes = 1;
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bmp.bmiHeader.biBitCount = 32;
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bmp.bmiHeader.biCompression = BI_RGB;
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void* bits = 0;
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HBITMAP bitmap = ::CreateDIBSection(0, &bmp, DIB_RGB_COLORS, &bits, 0, 0);
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if (!bitmap)
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return nullptr;
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auto memoryDC = adoptGDIObject(::CreateCompatibleDC(0));
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::SelectObject(memoryDC.get(), bitmap);
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SendMessage(webViewWindow, WM_PRINT, reinterpret_cast<WPARAM>(memoryDC.get()), PRF_CLIENT | PRF_CHILDREN | PRF_OWNED);
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BITMAP info { };
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GetObject(bitmap, sizeof(info), &info);
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ASSERT(info.bmBitsPixel == 32);
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// We create a context that has an alpha channel below so that the PNGs we generate will also
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// have an alpha channel. But WM_PRINT doesn't necessarily write anything into the alpha
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// channel, so we set the alpha channel to constant full opacity to make sure the resulting image is opaque.
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makeAlphaChannelOpaque(info.bmBits, info.bmWidth, info.bmHeight);
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#if USE(CG)
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RetainPtr<CGColorSpaceRef> colorSpace = adoptCF(CGColorSpaceCreateDeviceRGB());
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auto context = adoptCF(CGBitmapContextCreate(info.bmBits, info.bmWidth, info.bmHeight, 8, info.bmWidthBytes, colorSpace.get(), kCGBitmapByteOrder32Host | kCGImageAlphaPremultipliedFirst));
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#elif USE(CAIRO)
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cairo_surface_t* image = cairo_image_surface_create_for_data((unsigned char*)info.bmBits, CAIRO_FORMAT_ARGB32,
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info.bmWidth, info.bmHeight, info.bmWidthBytes);
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cairo_t* context = cairo_create(image);
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cairo_surface_destroy(image);
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#elif USE(DIRECT2D)
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auto targetProperties = D2D1::RenderTargetProperties();
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targetProperties.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE);
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COMPtr<ID2D1DCRenderTarget> renderTarget;
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HRESULT hr = pixelDumpSystemFactory()->CreateDCRenderTarget(&targetProperties, &renderTarget);
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if (!SUCCEEDED(hr))
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return nullptr;
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hr = renderTarget->BindDC(memoryDC.get(), &frame);
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if (!SUCCEEDED(hr))
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return nullptr;
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auto context = renderTarget.get();
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#endif
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return BitmapContext::createByAdoptingBitmapAndContext(bitmap, WTFMove(context));
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}
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